A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH2 with bimetallic oxide Sc2O3/TiO2

H. X. Huang; J. G. Yuan; B. Zhang; J. G. Zhang; Y. F. Zhu; L. Q. Li; Y. Wu

doi:10.1016/j.jallcom.2020.155387

A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH₂ with bimetallic oxide Sc₂O₃/TiO₂

H. X. Huang, J. G. Yuan, B. Zhang, J. G. Zhang, Y. F. Zhu, L. Q. Li, Y. Wu

材料科学与工程学院

科研成果: 期刊稿件 › 文章 › 同行评审

48 引用（Scopus）

摘要

The positive effect of heterogeneous catalysis on hydrogen storage performance of magnesium hydride (MgH₂) has been recognized by a large number of researchers. In the present paper, a bimetallic oxide catalyst Sc₂O₃/TiO₂ with noteworthy synergistic catalysis is synthesized by a facile method. A significant enhancement of hydrogen storage performance is achieved when 5 wt% Sc₂O₃/TiO₂ catalyst is added into MgH₂. It absorbs 6.08 wt% H₂ within 3000 s at 200 °C and releases 6.21 wt% H₂ within 1000 s at 300 °C, which is far better than that of Mg/MgH₂. The excellent performance is attributed to the synergistic catalysis of bimetallic oxides. The uniform distribution of Sc and Ti evidenced by EDS is beneficial to the synergistic catalytic effect on the surface of Mg particles. This study further confirms the initiative of multi-phase synergistic catalysis and provides insights for the selection and design of catalysts.

源语言	英语
文章编号	155387
期刊	Journal of Alloys and Compounds
卷	839
DOI	https://doi.org/10.1016/j.jallcom.2020.155387
出版状态	已出版 - 25 10月 2020

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title = "A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH2 with bimetallic oxide Sc2O3/TiO2",

abstract = "The positive effect of heterogeneous catalysis on hydrogen storage performance of magnesium hydride (MgH2) has been recognized by a large number of researchers. In the present paper, a bimetallic oxide catalyst Sc2O3/TiO2 with noteworthy synergistic catalysis is synthesized by a facile method. A significant enhancement of hydrogen storage performance is achieved when 5 wt% Sc2O3/TiO2 catalyst is added into MgH2. It absorbs 6.08 wt% H2 within 3000 s at 200 °C and releases 6.21 wt% H2 within 1000 s at 300 °C, which is far better than that of Mg/MgH2. The excellent performance is attributed to the synergistic catalysis of bimetallic oxides. The uniform distribution of Sc and Ti evidenced by EDS is beneficial to the synergistic catalytic effect on the surface of Mg particles. This study further confirms the initiative of multi-phase synergistic catalysis and provides insights for the selection and design of catalysts.",

keywords = "Bimetallic oxides, Hydrogen sorption kinetics, Mg hydride, Synergistic catalysis",

author = "Huang, {H. X.} and Yuan, {J. G.} and B. Zhang and Zhang, {J. G.} and Zhu, {Y. F.} and Li, {L. Q.} and Y. Wu",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

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doi = "10.1016/j.jallcom.2020.155387",

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T1 - A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH2 with bimetallic oxide Sc2O3/TiO2

AU - Huang, H. X.

AU - Yuan, J. G.

AU - Zhang, B.

AU - Zhang, J. G.

AU - Zhu, Y. F.

AU - Li, L. Q.

AU - Wu, Y.

PY - 2020/10/25

Y1 - 2020/10/25

N2 - The positive effect of heterogeneous catalysis on hydrogen storage performance of magnesium hydride (MgH2) has been recognized by a large number of researchers. In the present paper, a bimetallic oxide catalyst Sc2O3/TiO2 with noteworthy synergistic catalysis is synthesized by a facile method. A significant enhancement of hydrogen storage performance is achieved when 5 wt% Sc2O3/TiO2 catalyst is added into MgH2. It absorbs 6.08 wt% H2 within 3000 s at 200 °C and releases 6.21 wt% H2 within 1000 s at 300 °C, which is far better than that of Mg/MgH2. The excellent performance is attributed to the synergistic catalysis of bimetallic oxides. The uniform distribution of Sc and Ti evidenced by EDS is beneficial to the synergistic catalytic effect on the surface of Mg particles. This study further confirms the initiative of multi-phase synergistic catalysis and provides insights for the selection and design of catalysts.

AB - The positive effect of heterogeneous catalysis on hydrogen storage performance of magnesium hydride (MgH2) has been recognized by a large number of researchers. In the present paper, a bimetallic oxide catalyst Sc2O3/TiO2 with noteworthy synergistic catalysis is synthesized by a facile method. A significant enhancement of hydrogen storage performance is achieved when 5 wt% Sc2O3/TiO2 catalyst is added into MgH2. It absorbs 6.08 wt% H2 within 3000 s at 200 °C and releases 6.21 wt% H2 within 1000 s at 300 °C, which is far better than that of Mg/MgH2. The excellent performance is attributed to the synergistic catalysis of bimetallic oxides. The uniform distribution of Sc and Ti evidenced by EDS is beneficial to the synergistic catalytic effect on the surface of Mg particles. This study further confirms the initiative of multi-phase synergistic catalysis and provides insights for the selection and design of catalysts.

KW - Bimetallic oxides

KW - Hydrogen sorption kinetics

KW - Mg hydride

KW - Synergistic catalysis

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M3 - 文章

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SN - 0925-8388

VL - 839

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -

A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH2 with bimetallic oxide Sc2O3/TiO2

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A noteworthy synergistic catalysis on hydrogen sorption kinetics of MgH₂ with bimetallic oxide Sc₂O₃/TiO₂